Home.Co- 100pcs Disposable Food Cover[Safety Material] These fresh keeping bags are made of food grade transparent and healthy PE material, safe to use, not easy to tear, and durable. [Retractable Design] These food covers have elastic and retractable openings, which can be applied to bowls of different sizes and can cover the tops of bowls, plates and other containers. The opening can be stretched up to 45cm. Quickly cover and store while being able to see what is under the covers.